core

### Plus Tolerance for Straightness Dimensions

This Plus box in the Straightness dialog box (Insert | Dimension | Straightness) enables you to enter a tolerance value along the plus direction. This means that any straightness that differs from your nominal or theoretical straightness can still be a valid measurement as long as it falls within the tolerance range specified.

For information on how PC-DMIS reports tolerance zones for form dimensions, see "Reported Tolerance Zones for Form Dimensions" in the "Reporting Measurement Results" chapter.